I think the trade talking of here is joaomcm taking 1000 cash and 3rd green for 3rd cyan and 3rd brown giving to batlimore

joaomcm had -78 cash and yellows full and batlimore had 2 whites for income and 1105 cash

board was preety empty with only dark blue upgraded till level 3 and also the start was preety good (+170),

So joaomcm couldn't have any problem in upgrading greens soon which he did eventually and winning at the end but batlimore left himself cashless with the trade despite gaining 2 sets and with only 2 whites for income
and was all depending on start price and trading whites with whatnow3

So trade have further more benifits for jaomcm than it had for batlimore at the time of trade so